If you haven’t played 2007’s most immersive and atmospheric shooter, or you’re back for replay, this mod is for you. This is the world of S.T.A.L.K.E.R. like you’ve never seen before, with updated graphics and added functionality that don’t change the original story or gameplay. The game hasn’t been changed beyond recognition, but rather enhanced while preserving the core elements that made it the unique experience it is.

This mod splits the game into 2 almost different experiences. One is the original experience and the other is the graphically overhauled one. Sure playing with better graphics adds to the replay value but nothing can beat the original.
I recommend playing with this mod after experiencing the original game.